Morrissey was diagnosed with double pneumonia at a hospital in San Francisco on March 8, forcing a last-minute postponement of his concert at the Regency Ballroom, according to the show's promoter Goldenvoice. Mat Hayward/FilmMagic

Singer Morrissey was forced to postpone his concert at the Regency Ballroom on Saturday because he is suffering from double pneumonia, according to his publicist Allie Bostwick of Susan Blond, Inc.

The 53-year-old English singer and former leader of the Smiths is expected to make a full recovery, said an official statement posted on the fan site True to You, with plans to resume his tour with a headlining appearance at the Vive Latino festival in Mexico City on Thursday.

Morrissey, whose full name is Steven Patrick Morrissey, has suffered a series of health problems in recent months. In January, he had to cancel several dates on his current tour after he was hospitalized in Michigan with a bleeding ulcer and other ailments.

Questions about the state of his health prompted him to release a statement to his fans: "The reports of my death have been greatly understated. Once admitted to the William Beaumont Hospital at Royal Oak in Michigan, I received treatment for concussion, a bleeding ulcer, and Barrett's esophagus. The positive from all of this is that there are now no known ailments left for me to try."

In February, Morrissey pulled an appearance on "Jimmy Kimmel Live" for philosophical reasons: the outspoken animal-rights activist and vegetarian took offense at the other guests, the cast of the A&E hunting reality series "Duck Dynasty," whom he labeled as "animal serial killers."

Tickets purchased for Saturday's Regency Ballroom concert will be honored at the same venue on May 1. Morrissey is also scheduled to perform at the Warfield on April 30.